This presentation entitled "Golden rice" explains the needs for golden rice development, Biotechnological manipulations in metabolic pathways for GR-1 and GR-2 development and finally it also detailed with the associated ethical issues.
This presentation entitled "Golden rice" explains the needs for golden rice development, Biotechnological manipulations in metabolic pathways for GR-1 and GR-2 development and finally it also detailed with the associated ethical issues.
☺INTRODUCTION
☺Bt COTTON
☺MAJOR PESTS OF COTTON
☺MODE OF ACTION OF Bt GENE
☺ADVANTAGES
☺DISADVANTAGES
☺CONCLUSION
☺REFERENCES
Genetically modified variety of cotton that produces an insecticide whose gene has been derived from a soil bacterium called Bacillus thuringiensis (Bt).
Three types of toxins.
A total of 229 cry toxins ( cry1Aa to Cry72Aa), cyt toxins ( cyt 11Aa to cyt3Aa) and 102 vip toxins( vip1Aa1 to vip4Aa1) have been discovered.
Insect-resistant transgenic crops were first commercialized in the mid-1990s with the introduction of GM corn (maize), potato and cotton plants expressing genes encoding the entomocidal δ-endotoxin from Bacillus thuringiensis (Bt; also known as Cry proteins). In 2010, 148 million ha of biotech crops were grown in 29 countries, representing 10% of all 1.5 billion hectares of cropland in the world. The global value of this seed alone was valued at US $11.2 billion in 2010, with commercial biotech maize, soybean grain and cotton valued at approximately US $150 billion per year. In recent years, it has become evident that Bt-expressing crops have made a significant beneficial impact on global agriculture, not least in terms of pest reduction and improved quality. However, because of the potential for pest populations to evolve resistance, and owing to lack of effective control of homopteran pests, alternative strategies are being developed. Some of these are based on Bacillus spp., e.g. vegetative insecticidal proteins (VIPs) or other insect pathogens.
Agrobacterium mediated gene transfer in plants.ICHHA PURAK
This power point presentation consist of 41 slides. Attempts have been made to illustrate how Agrobacterium behaves us natural genetic engineer. How it can infect a plant through wound and a part of DNA present on Ti plasmid is Tranferred and causes disease as crown gall in the infected plant. In second part of the presentation attempts have been made to describe how Agrobacterium can be utilized for iinsertion of desired gene into the plant,what manipulation are to be made with Agrobacterium.How infection and transfer of desired gene can be made possible.What is the role of plant tissue culture etc.
Bacillus thrungenesis (BT) is a type of bacteria which secrete a special type of toxin which can kill specific type of pest and insects.
in case of any question contact me at zain_bbt@yahoo.com
Ethical and bio-safety issues related to GM cropsMahammed Faizan
a seminar presentation on ethical and bio-safety issues related GM crops.
impact of gm crops on human, animal and environmental health.
safety measure related transgenic crops.
international governmental bodies
Biotechnology with agriculture is very useful in now a days and also in upcoming days. With the help of biotechnology we can produce better quality of crops and also increase the yield. The produces are also free from pests.
The advances of modern plant technologies, especially genetically modified crops, are considered to be a substantial benefit to agriculture and society. However, so-called transgene escape remains and is of environmental and regulatory concern. Genetic use restriction technologies (GURTs), developed to secure return on investments through protection of plant varieties, are among the most controversial and opposed genetic engineering biotechnologies as they are perceived as a tool to force farmers to depend on multinational corporations’ seed monopolies. In this work, the currently proposed strategies are described and compared with some of the principal techniques implemented for preventing transgene flow and/or seed saving, with a simultaneous analysis of the future perspectives of GURTs taking into account potential benefits, possible impacts on farmers and local plant genetic resources (PGR), hypothetical negative environmental issues and ethical concerns related to intellectual property that have led to the ban of this technology
Science of Genetic Engineering as it relates to the California Initiative to ...Belinda Martineau
Slides used for an educational event related to The California Right to Know Genetically Engineered Food Act. The event was held at the Rudolf Steiner College in Fair Oaks, California on March 23, 2012.
☺INTRODUCTION
☺Bt COTTON
☺MAJOR PESTS OF COTTON
☺MODE OF ACTION OF Bt GENE
☺ADVANTAGES
☺DISADVANTAGES
☺CONCLUSION
☺REFERENCES
Genetically modified variety of cotton that produces an insecticide whose gene has been derived from a soil bacterium called Bacillus thuringiensis (Bt).
Three types of toxins.
A total of 229 cry toxins ( cry1Aa to Cry72Aa), cyt toxins ( cyt 11Aa to cyt3Aa) and 102 vip toxins( vip1Aa1 to vip4Aa1) have been discovered.
Insect-resistant transgenic crops were first commercialized in the mid-1990s with the introduction of GM corn (maize), potato and cotton plants expressing genes encoding the entomocidal δ-endotoxin from Bacillus thuringiensis (Bt; also known as Cry proteins). In 2010, 148 million ha of biotech crops were grown in 29 countries, representing 10% of all 1.5 billion hectares of cropland in the world. The global value of this seed alone was valued at US $11.2 billion in 2010, with commercial biotech maize, soybean grain and cotton valued at approximately US $150 billion per year. In recent years, it has become evident that Bt-expressing crops have made a significant beneficial impact on global agriculture, not least in terms of pest reduction and improved quality. However, because of the potential for pest populations to evolve resistance, and owing to lack of effective control of homopteran pests, alternative strategies are being developed. Some of these are based on Bacillus spp., e.g. vegetative insecticidal proteins (VIPs) or other insect pathogens.
Agrobacterium mediated gene transfer in plants.ICHHA PURAK
This power point presentation consist of 41 slides. Attempts have been made to illustrate how Agrobacterium behaves us natural genetic engineer. How it can infect a plant through wound and a part of DNA present on Ti plasmid is Tranferred and causes disease as crown gall in the infected plant. In second part of the presentation attempts have been made to describe how Agrobacterium can be utilized for iinsertion of desired gene into the plant,what manipulation are to be made with Agrobacterium.How infection and transfer of desired gene can be made possible.What is the role of plant tissue culture etc.
Bacillus thrungenesis (BT) is a type of bacteria which secrete a special type of toxin which can kill specific type of pest and insects.
in case of any question contact me at zain_bbt@yahoo.com
Ethical and bio-safety issues related to GM cropsMahammed Faizan
a seminar presentation on ethical and bio-safety issues related GM crops.
impact of gm crops on human, animal and environmental health.
safety measure related transgenic crops.
international governmental bodies
Biotechnology with agriculture is very useful in now a days and also in upcoming days. With the help of biotechnology we can produce better quality of crops and also increase the yield. The produces are also free from pests.
The advances of modern plant technologies, especially genetically modified crops, are considered to be a substantial benefit to agriculture and society. However, so-called transgene escape remains and is of environmental and regulatory concern. Genetic use restriction technologies (GURTs), developed to secure return on investments through protection of plant varieties, are among the most controversial and opposed genetic engineering biotechnologies as they are perceived as a tool to force farmers to depend on multinational corporations’ seed monopolies. In this work, the currently proposed strategies are described and compared with some of the principal techniques implemented for preventing transgene flow and/or seed saving, with a simultaneous analysis of the future perspectives of GURTs taking into account potential benefits, possible impacts on farmers and local plant genetic resources (PGR), hypothetical negative environmental issues and ethical concerns related to intellectual property that have led to the ban of this technology
Science of Genetic Engineering as it relates to the California Initiative to ...Belinda Martineau
Slides used for an educational event related to The California Right to Know Genetically Engineered Food Act. The event was held at the Rudolf Steiner College in Fair Oaks, California on March 23, 2012.
See text at http://molcyt.org/2012/11/29/superdomestication-feed-forward-breeding-and-climate-proofing-crops/ which also links the the YouTube talk using these slides
Highly descriptive and illustrative presentation based on Biotechnology chapter 12 of NCERT class XII.
This is an important topic especially from biological research point of view.
This is to help students thoroughly understand the topic for exams as well as for future practical applications.
Introduction: Biotechnology is an emerging field of research as it has the potential to solve many biological problems which could not be solved till now with conventional techniques.
The use of biology to develop technologies and products for the welfare of human beings is known as Biotechnology. It has various applications in different fields such as Therapeutics, Diagnostics, Processed Food, Waste Management, Energy Production, Genetically Modified Crops etc.
Biotechnology means 'applications of scientific and engineering principles to biological processes to provide goods and services'. Full understanding of biological processes is possible with detailed analysis of gene structure and function i.e. the Genetic Engineering means the introduction of manipulated genetic material (DNA) into a cell in such a way as to replicate and be passed on to progeny cells'. The outcome is attractive and promising.
Genetic Engineering in Insect Pest management Mohd Irshad
gene incorporation is gaining attention across the globe with the aim of improving plant health, crop protection, and sustainable crop production. This versatile method of Scientific cultivation should be adopted by the growers as it has been investigated and assessed by experts and environmentalists. There is not any kind of toxic effect on mammalian.
Introduction
Definition of an Insect Resistant Plant
What is the Bt gene?
History
The crystal ( cry)Proteins
Definition of cry protein
How does Bt work?
Mechanism of Bt toxicity
Mode of Action of Insecticidal Crystal Protein
Bt Technology
The Insect Resistance Problem
Advantages
Limitations
Conclusion
References
For centuries, humans have searched for crop plants that can survive and produce in spite of insect pests.
Knowingly or unknowingly, ancient farmers selected for pest resistance genes in their crops, sometimes by actions as simple as collecting seed from only the highest-yielding plants in their fields.
With the advent of genetic engineering, genes for insect resistance now can be moved into plants more quickly and deliberately.
Bt technology is only one example of ways genetic engineering may be used to develop insect-resistant crops now and in the future.
Bt-corn is a type of genetically modified organism, termed GMO. A GM.pdfanurag1231
Bt-corn is a type of genetically modified organism, termed GMO. A GMO is a plant or animal
that has been genetically modified through the addition of a small amount of genetic material
from other organisms through molecular techniques. Currently, the GMOs on the market today
have been given genetic traits to provide protection from pests, tolerance to pesticides, or
improve its quality. Examples of GMO field crops include Bt-potatoes, Bt-corn, Bt-sweet corn,
Roundup Ready soybeans, Roundup Ready Corn, and Liberty Link corn.
Genetically modified foods are foods derived from GMO crops. For example, corn produced
through biotechnology is being used in many familiar foods, including corn meal and tortilla
chips. In addition, corn is used to make high fructose corn syrup, which is used as a sweetener in
many foods such as soft drinks and baked goods. While the FDA (U.S. Food and Drug
Administration) regulates genetically modified foods, it considers Bt-corn to be nutritionally
equivalent to traditional corn.
To transform a plant into a GMO plant, the gene that produces a genetic trait of interest is
identified and separated from the rest of the genetic material from a donor organism. Most
organisms have thousands of genes, a single gene represents only a tiny fraction of the total
genetic makeup of an organism.
A donor organism may be a bacterium, fungus or even another plant. In the case of Bt corn, the
donor organism is a naturally occurring soil bacterium, Bacillus thuringiensis, and the gene of
interest produces a protein that kills Lepidoptera larvae, in particular, European corn borer. This
protein is called the Bt delta endotoxin. Growers use Bt corn as an alternative to spraying
insecticides for control of European and southwestern corn borer.
Bt Delta Endotoxin
The Bt delta endotoxin was selected because it is highly effective at controlling Lepidoptera
larvae, caterpillars. It is during the larval stage when most of the damage by European corn borer
occurs. The protein is very selective, generally not harming insects in other orders (such as
beetles, flies, bees and wasps). For this reason, GMOs that have the Bt gene are compatible with
biological control programs because they harm insect predators and parasitoids much less than
broad-spectrum insecticides. The Bt endotoxin is considered safe for humans, other mammals,
fish, birds, and the environment because of its selectivity. Bt has been available as a commercial
microbial insecticide since the 1960s and is sold under many trade names. These products have
an excellent safety record and can be used on many crops until the day of harvest.
To kill a susceptible insect, a part of the plant that contains the Bt protein (not all parts of the
plant necessarily contain the protein in equal concentrations) must be ingested. Within minutes,
the protein binds to the gut wall and the insect stops feeding. Within hours, the gut wall breaks
down and normal gut bacteria invade the body cavity. The i.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
2. Genetic modification is modern biotechnology
techniques to manipulate the genetic material of
organisms within a species or between different
species.
Transgenic plants are the results of modern
biotechnology.
An organism containing a transgene introduced by
technological methods is called transgenic.
Transgenes are the genetically engineered gene
added to a species. The process of producing
transgenic organism is called transgenesis .
PLANT TRANSFORMATION METHODS : Transfer
of DNA via a vector: Agrobacterium Direct transfer
of DNA: gene guns electroporation microinjection
5. GOLDEN RICE
Golden rice is a variety of rice (Oryza sativa)
produced through genetic engineering with improved
nutritional quality.
Golden rice appears golden due to presence of B-
carotene, a precursor of vitamin A in the edible
portions of rice.
The concept of golden rice was developed by
potrykus and beyerwith the goal of helping children
and pregnant women who suffer from vitamin A
deficiency (VAD) , which was a major source for 1-2
million deaths, 500,000 cases of irreversible blindness
and millions of cases of xerophthalmia annually.
Growing and consuming golden rice could be
an economical and effective way of overcoming these
6. Golden rice was designed to produce beta-
carotene, a precursor of vitamin A, in the edible
part of rice, the endosperm.
The rice plant can naturally produce beta-
carotene in its leaves, where it is involved
in photosynthesis. However, the plant does not
normally produce the pigment in the endosperm,
where photosynthesis does not occur
7. HOW DOES IT WORK?
genetic engineering is used in order to create Golden Rice,
where the method involved is by using a common plant
bacterium which naturally inserts its genes into plant tissue
hosts.
The addition of 2 genes in the rice genome will
complete the biosynthetic pathway
1. Phytoene synthase (psy) – derived from daffodils (
Narcissus pseudonarcissus )
Phytoene synthase is a transferase enzyme involved in the
biosynthesis of carotenoids. It catalyzes the conversion of
geranylgerany pyrophosphate to phytoene.
2. lycopene cyclase (crt1) – from soil bacteria Erwinia
uredovora
Produces enzymes and catalysts for the biosynthesis of
carotenoids ( β -carotene) in the endosperm
8.
9.
10. The psy and crt1 genes were transformed
into the rice nuclear genome and placed under
the control of an endosperm-specific promoter ,
so they are only expressed in the endosperm.
The exogenous lyc gene has a transit peptide
sequence attached so it is targeted to the plastid
, where geranylgerany diphosphate formation
occurs.
The bacterial crt1 gene was an important
inclusion to complete the pathway, since it can
catalyze multiple steps in the synthesis of
carotenoid, while these steps require more than
one enzyme in plants.
11. The end product of the engineered pathway is
lycopene , but if the plant accumulated lycopene,
the rice would be red.
Recent analysis has shown the plant's
endogenous enzymes process the lycopene
to beta-carotene in the endosperm, giving the
rice the distinctive yellow color for which it is
named.
The original golden rice was called SGR1, and
under greenhouse conditions it produced
1.6 µg/g of carotenoids.
12. DISADVANTA
GE
Health
May cause allergies or fail to perform desired effect
Supply does not provide a substantial quantity as
the recommended daily intake
Environment
Loss of Biodiversity. May become a gregarious
weed and endanger the existence of natural rice
plants
Genetic contamination of natural, global staple
foods
Culture
Some people prefer to cultivate and eat only white
rice based on traditional values and spiritual beliefs
13.
14. Bt cotton is an insect resistant transgenic crop
designed to combact the bolloworm infection of
cotton.
It was created by genetically engineering the cotton
genome to express an insecticidal protoxin produced
by a bacterium bacillus thuringiensis.
The Bt is a short form Bacillus thuringiensis.
The bacterium Bacillus thuringiensis (Bt) is a family of
over 200 different proteins which naturally produce
chemicals harmful to selective insects, most notably
the larvae of moths and butterflies, beetles, cotton
bollworms and flies, and harmless to other forms of
life.
15. This bacterium forms parasporal crystals during
stationary phase of its growth cycle. The synthesized
crystalline proteins called ‘endotoxins’ are highly toxic
to certain insects.
They kill the insect by acting on the epithelium
tissues of midgut of caterpillars.
These bt toxins includes cry I , cry II, cry III and about
200 others that accumulate within the bacterium body
as an inactive precursor. (* cry = crystalline)
The gene coding for Bt toxin has been inserted into
cotton, causing cotton to produce this natural
insecticide in its tissues.
16.
17. (Bt) cotton was created through the addition of
genes encoding toxin crystals in the Cry group of
endotoxin. When insects attack and eat the cotton
plant the Cry toxins are dissolved.
This is made possible due to the high pH level of the
insects stomach. The now dissolved and activated
Cry molecules bond to cadherin-like proteins on cells
comprising the brush border molecules.
Due to the formation of Cry ion channels sufficient
regulation of potassium ions is lost and results in the
death of epithelial cells. The death of such cells
creates gaps in the brush border membrane. The
gaps then allow bacteria and (Bt) spores to enter the
body cavity resulting in the death of the organism.
18.
19. The major advantage of Bt
cotton
The Bt cotton has inbuilt genetic resistance to bollworms
and is very effective in controlling the yield losses caused
by bollworms to a considerable extent. The resistance is
governed by a single dominant gene.
Use of Bt cotton reuces use of pesticides resulting in
reducing the cost of cultivation.
It results in improvement of yield levels and also improves
margin of profit to the farmers.
It provides opportunities to grow cotton in areas of severe
bollworm incidence.
It promotes ecofriendly cultivation of cotton .
It also reduces environmental pollution and risk of health
hazards associated with use of insecticides because in Bt
cotton the insecticides are rarely used. An average
reduction of 3.6 sprays per crop season has been reported
in Bt varieties as compared to non-Bt.
20.
21.
22. Effect of Bt cotton on the health of
animals, poultry, human and
environment
The feeding of Bt cotton seed to animal has not been
reported to have any adverse effect.
Seed of Bt cotton and its cake do not have any
adverse effect on digestion of animals. Moreover, no
allergic or toxic effect of use of Bt cotton seed and
meal has been reported.
The oil extracted from the seed of Bt cotton has not
been found to have any adverse effect on human
health.
No adverse effect of Bt cotton has been reported on
non target beneficial insects so far.
No adverse effect of Bt cotton on the environment has